An 18-year-old from Ladera Ranch died Sunday after he fell about 50 to 60 feet onto a cement embankment from a freeway overpass following a traffic crash, authorities said.

At about 11:40 p.m. Saturday, Cameron Cook was a passenger in a 2001 Chevrolet Camaro going north on the 57 freeway south of Katella Avenue at 65 to 70 mph when the car was involved in what the California Highway Patrol described as a "solo traffic collision." There were no further details on what kind of collision it was.

The car came to a rest, facing north on the right shoulder and partially blocking the No. 5 lane, according to CHP.

The driver and Cook exited the car. Someone stopped shortly after the accident and advised the driver to turn on his emergency lights. While the driver went back inside the car to turn on the lights, Cook remained on the right shoulder near the Camaro's rear.

A few minutes later, a 1993 Honda Civic traveling north on the 57 struck the front left side of the Camaro. The force of the collision caused the Camaro to be pushed to the right, striking Cook and pushing him backward over the overpass railing.

Cook was transported to UCI Medical Center in Orange, where he died at 5:08 a.m. Sunday, according to the coroner's office.

CHP did not release names of either driver. The Camaro driver, listed as 18 and from San Juan Capistrano, suffered minor injuries and was not sent to a hospital, according to CHP. The driver of the Civic, listed as 24 and from Highland, suffered bruises to her right hand and a gouge to her right leg, according to CHP.

CHP said it does not know the relationship of the Camaro driver to Cook.